SN74BCT2240N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT2240N is an octal buffer and line/MOS driver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating free-air temperature range of 0°C to 70°C. The device features high fan-out, improved fan-in, and equivalent 33-Ω series resistors in the output ports to reduce overshoot and undershoot without requiring external components. Outputs can source or sink up to 12 mA. Propagation delays from input A to output Y are typically 3.4 ns (high-to-low) and 2.8 ns (low-to-high) at 5 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• State-of-the-art BiCMOS design significantly reduces quiescent current consumption.
• Integrated 33-Ω series resistors eliminate the need for external components to minimize signal overshoot and undershoot.
• Organized as two independent 4-bit line drivers with separate active-low output-enable inputs.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus-oriented receivers and transmitters

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific orderable part number matches the required package type and thermal rating. Confirm RoHS compliance status and lead finish specifications against the latest manufacturer documentation. Ensure the selected variant aligns with the intended operating temperature range and power supply requirements for the target application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with symmetrical drive capabilities. The device offers complementary output-enable options compared to similar models like the SN74BCT2241. Consider the 33-Ω internal resistance for impedance matching applications where external series resistors would otherwise be necessary to maintain signal integrity on bus lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN54/74BCT logic family, which utilizes BiCMOS technology to combine the speed of bipolar circuits with the low power consumption of CMOS. It is designed specifically to improve performance and density in memory address drivers and clock distribution networks. The N suffix indicates a plastic dual-in-line package suitable for through-hole mounting.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74BCT2241 provides similar functionality but includes noninverting outputs alongside inverting ones. The SN74BCT2244 offers all noninverting outputs. Verify pinout compatibility and output enable logic polarity before substituting these devices in existing designs.